#region The MIT License
// The MIT License
// 
// Copyright (c) 2009 octalforty studios
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#endregion
using System;

namespace octalforty.Chinchillin.Actions.Sync
{
    public class DelegateSyncCallback<TIdentity, TChecksum> : ISyncCallback<TIdentity, TChecksum>
        where TIdentity : IEquatable<TIdentity>
        where TChecksum : IEquatable<TChecksum>
    {
        private readonly SyncEventHander<TIdentity, TChecksum> skipLocalItemCallback;
        private readonly SyncEventHander<TIdentity, TChecksum> deleteLocalItemCallback;
        private readonly SyncEventHander<TIdentity, TChecksum> syncRemoteItemCallback;

        public DelegateSyncCallback(SyncEventHander<TIdentity, TChecksum> skipLocalItemCallback, 
                                    SyncEventHander<TIdentity, TChecksum> deleteLocalItemCallback, 
                                    SyncEventHander<TIdentity, TChecksum> syncRemoteItemCallback)
        {
            this.skipLocalItemCallback = skipLocalItemCallback;
            this.deleteLocalItemCallback = deleteLocalItemCallback;
            this.syncRemoteItemCallback = syncRemoteItemCallback;
        }

        public void SkipLocalItem(ISyncContext context, SyncItem<TIdentity, TChecksum> item)
        {
            if(skipLocalItemCallback != null)
                skipLocalItemCallback.Invoke(context, item);
        }

        public void DeleteLocalItem(ISyncContext context, SyncItem<TIdentity, TChecksum> item)
        {
            if(deleteLocalItemCallback != null)
                deleteLocalItemCallback.Invoke(context, item);
        }

        public void SyncRemoteItem(ISyncContext context, SyncItem<TIdentity, TChecksum> item)
        {
            if(syncRemoteItemCallback != null)
                syncRemoteItemCallback.Invoke(context, item);
        }
    }
}